The aim of this study is to examine the influence of organizational culture, personality and motivation on Teachers' Organizational Commitment either individually or jointly. Variables of Organizational Culture, Personality and motivation serve as independent variables while the dependent variable is Organizational Commitment. The study was conducted on randomly selected 92 teachers of Senior Islamic High School in the city of Bogor, West Java. Using mix method, sequential explanatory design is applied where quantitative come first. The study both quantitatively and qualitatively reveals that there is a positive significant relationship among variables under the following distribution of coefficient of correlation: Organizational Culture to Organizational Commitment= 0.052, Personality to Organizational Commitment = 0.172, Motivation to Organizational Commitment=0.264 and when tested together it produces coefficient of correlation = 0.712, indicating the existence of other 28.8% variables not including in the model affecting factors affecting Organizational Commitment within the teachers' working environment.